Ecofriend

Eco Factor: Solar energy harvesting device offers renewable energy at the cost of coal. In an effort to lower the cost of renewable energy and make it available at the price of conventional sources of energy, inventor Roger Angel at the University.

Now, it's the turn for the earth to save itself from the scorches of the sun! It will soon get an umbrella to reduce its temperature -- by building a massive space sunshade! But, how?! A University of Arizona professor, Roger Angel, thinks this...